Oil burner



PATENT ijoFFiCa. j

GUSTAV NOREEN AND CARL v. NEWQTI-IST, or. CHICAGO, ILLINOIS.

011i BURNER.

Application filed December'27, .l926.. seri i'no. 157,295.

Our invention relates to improvements in oil burners, and it consists in the combinations, constructions, and arrangements "here in described and claimed.

.An object of our invention is to provide an oil burner which is constructedof a small, number of parts, thus rendering the device simple in construction and inexpen-' sive to manufacture. v

l0 A further object of our invention isj to provide a device of the type described in which the memberwhic'h contacts withv the flame may be readily removed and anew member of the same likeness inserted in its place without removing any other portion of the burner. 1 l

A further object of out invention is to,

provide a device of the type described in which this removable member protects the remaining portions of the burner from the flame.

A further object of our invention is to provide a device of the type described which burns the oil without wasting any and produces a smokeless flame, the smoke being consumed in the heat.

A further object of our invention is to provide a device of the type described which requires only a low air pressure and a low oil pressure.

Other objects and advantages will appear in the following specification, and the novel features of the invention will be particularly pointed out in the appended claim.

Our invention is illustrated in the accompanying drawings, forming part of this application, in which Figure 1 is a longitudinally extending sectional view of the device,

40 Figure 2 is a section along the line 22 of Figure 1,

Figure 3 is a fragmentary elevation of a portion of the device, and

Figure 4 is a section along the line 44 of Figure 1.

In carrying out our invention, we provide a housing 1 which consists of a casting having a relatively large air compartmentv2 and a relatively small air compartment 3. The relatively large air compartment 2 is provided with an air inlet 4. The air entering the inlet 4 is controlled by any suitable means, such as a rotary valve 4. The relatively small air compartment 3 is provided withan air inlet 5. The relatively small air compartment is formed of an integ'ral cylindrical member 6 which extends withinthe relativelyflarge air compartment 2 and is centrally' disposed therein.

7 is rigidly mounted upon" the outer'jsurface of the cylindrical member '6 substantially adjacent the end thereof. A burne head 8 is provided with an opening 9-for receiving the cylinder portion 6. Theburner ;head".8 is further provided with a' bayonet slot 10 which is adapted to receive the pin'TZ-j The, free end l1oftheburner head 8 is conical shaped and extends, outwardlyfto the fend of the relatively large air compartment- The wall of the relativelylargeiair com partment' 2 is provided with M fli llulfii head 12 at the outer edge thereof An open- ,1

ing 13 provides communication betweenthe conical-shaped portion on the burner head 8 and the relatively small air compartment 3.

The wall of therelatively small air compartment 3 is provided with a reduced cylindrical portion 14 for receiving and retaining an oil tube 15. The cylindrical portion 14 is provided with a slot 14 and a bolt 14". One end of the oil tube 15 is provided with a valve casing 16. A valve 17 is movably disposed within the casing and adapted to be positioned against the end of the .oil tube 15 for closing the same. The valve 17 is provided with a hand adjusting screw 18 which extends through a threadedopening 19 in the casing 16. An oil inlet pipe 20 is secured to the casing 16 and communicates with'the oil tube 15 by means of a passageway 21. i

The oil tube 15 is centrally'disposed within the relatively-small air compartment 3 and extends therethrough to a point substantially adjacent the opening 13 within the burner-head 8. The end of the oil tube 15 adjacent the burner head 8 is closed with the exception of a relatively small opening 22.

The casing may be attached to a boiler 23 in any suitable manner so that the air inlets remain upon the outside of the boiler.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood. The oil passes through the oil pipe 20 at low pressure, through the passageway 21, the oil tube 15, and through the relatively small opening 22. At this point, the oil is mixedwith air passing through the inlet Sand the relatively small compartment ,3 at low pressure. The mixed oil and air passes through j the opening 13 and becomes ignited in any" from the direct contact and heat of the flames. This wall is further protected by air passing through the inlet 4 and passing out around the burner head 8. Therefore, the onlypart in contact with the flame is the burner head 8. This part is simple in construction and may be readily removed by rotation in a clockwise direction and a new burner head readily inserted in its place.

The flow of the oil is controlled by the valve 17 in its "movement toward or away fromt'the oiltube 15. r

QA device of the type described comprising a housing having an open end, a cylindrical portionj centrally disposed in said housing andintegral therewitlnsaid cylindrical portion extending through and beyond said housing, said cylindrical portion forming a relatively large air compartment in said housing and a relatively small air compartment therein, an inlet for said relatively large a1r compartment, means for controlling the passage of air throughsaidinlet, a pin said burner head being'conical-shaped and extending outwardly to a position in alignment with the open end of said liousing,an

oil tube centrally disposed in said cylindrical portion and provided with a relatively small a opening in one end thereof, the relatively small opening in said oil tube being in align ment with the central opening of" said burner head, the other endfofsaid oil tube being provided with a valve, and means for. moving said valve toward or away from said oil tube for varying the amount ofoil' passing theretb'rough. 1

eusTAvNoREEN," CARL v.; rnwoursr.- 

